40 CFR Part 63, Table 9
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Compound name | Biorate (K1),L/g MLVSS-hr |
|---|---|
| Acetonitrile | 0.1 |
| Acetophenone | 0.538 |
| Diethyl sulfate | 0.105 |
| Dimethyl hydrazine(1,1) | 0.227 |
| Dimethyl sulfate | 0.178 |
| Dinitrotoluene(2,4) | 0.784 |
| Dioxane(1,4) | 0.393 |
| Ethylene glycol dimethyl ether | 0.364 |
| Ethylene glycol monobutyl ether acetate | 0.496 |
| Ethylene glycol monomethyl ether acetate | 0.159 |
| Isophorone | 0.598 |
| Methanol | a |
| Nitrobenzene | 2.3 |
| Toluidine (-0) | 0.859 |
| Triethylamine | 1.064 |
a For direct dischargers, the default biorate for methanol is 3.5 L/g MLVSS-hr; for indirect dischargers, the default biorate for methanol is 0.2 L/g MLVSS-hr.
[66 FR 40137, Aug. 2, 2001]